“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	length of an interval length of a queue length of arc length of a segment length of a sequence length of a series length of a string length of a vector length of a walk length of a word length of charge length of circumference length-of-day change of the earth length of delay length of exposure length of intervals length of iteration length of laminar jet flame length of lay length of life length of normal length of pendulum length of perpendiculars length of river length of sampling

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。